Area of Triangles, Trapezoids, and Parallelograms

Front

What is the formula for the area of a triangle?

Back

Area = 1/2 × base × height

Front

What is the formula for the area of a trapezoid?

Back

Area = 1/2 × (base1 + base2) × height

Front

What is the formula for the area of a parallelogram?

Back

Area = base × height

Front

What is the area of a triangle with a base of 10 ft and a height of 5 ft?

Back

Area = 1/2 × 10 ft × 5 ft = 25 ft²

Front

What is the area of a trapezoid with bases of 8 m and 6 m, and a height of 4 m?

Back

Area = 1/2 × (8 m + 6 m) × 4 m = 28 m²

Front

What is the area of a parallelogram with a base of 12 m and a height of 5 m?

Back

Area = 12 m × 5 m = 60 m²

Front

If the area of a triangle is 30 ft² and the base is 10 ft, what is the height?

Back

Height = (Area × 2) / base = (30 ft² × 2) / 10 ft = 6 ft

Front

If the area of a trapezoid is 40 m² and the height is 5 m, what is the average of the bases?

Back

Average of bases = Area / height = 40 m² / 5 m = 8 m

Front

What is the area of a triangle with a base of 14 cm and a height of 6 cm?

Back

Area = 1/2 × 14 cm × 6 cm = 42 cm²

Front

What is the area of a trapezoid with bases of 10 ft and 4 ft, and a height of 3 ft?

Back

Area = 1/2 × (10 ft + 4 ft) × 3 ft = 21 ft²